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- United States Geological Survey (USGS)22
- Pennsylvania Department of Environmental Protection7
- Pennsylvania Dept. of Environmental Protection, Bureau of Mining and Reclamation (BMR)5
- Environmental Resources Research Institute3
- Pennsylvania Department of Environmental Protection, Bureau of District Mining Operations3
- AWS TrueWind/NREL1
- Anelia Milbrandt1
- Central Intelligence Agency1
- Hudgins, Andrew1
- Michael Hill, PADEP1
- National Renewable Energy Laboratory (NREL)1
- SUNY Albany and NREL1
- U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response, Center for Program Analysis1
- United States. Bureau of Transportation Statistics1